JEE Chemistry

Electronic Configuration: JEE Questions & Solutions

12 previous-year JEE Chemistry questions on Electronic Configuration, each with a worked step-by-step solution.

Basic

Previous-year questions

  1. 01The extra stability of half-filled subshell is due to (A) Symmetrical distribution of electrons (B) Smaller coulombic repulsion energy (C)…MCQEasyJEE 2025
  2. 02Correct statements for an element with atomic number 9 are A. There can be 5 electrons for which m_s = +1/2 and 4 electrons for which m_s =…MCQMediumJEE 2025
  3. 03The electronic configuration for Neodymium is: (Atomic Number for Neodymium 60)MCQEasyJEE 2024
  4. 04The electronic configuration for Neodymium is: (Atomic Number for Neodymium 60)MCQEasyJEE 2024
  5. 05Choose the correct option having all the elements with d¹⁰ electronic configuration from the following:MCQEasyJEE 2024
  6. 06Total number of ions from the following with noble gas configuration is: Sr²⁺ (Z=38), Cs⁺ (Z=55), La²⁺ (Z=57), Pb²⁺ (Z=82), Yb²⁺ (Z=70) and…NVAEasyJEE 2024
  7. 07Match List-I with List-II: List-I (Element) | List-II (Electronic Configuration) A. N | I. [Ar] 3d10 4s2 4p5 B. S | II. [Ne] 3s2 3p4 C. Br…MCQEasyJEE 2024
  8. 08The electronic configuration of Einsteinium is: (Given atomic number of Einsteinium = 99)MCQEasyJEE 2024
  9. 09The number of s-electrons present in an ion with 55 protons in its unipositive state is:MCQEasyJEE 2023
  10. 10The magnetic behavior of Li₂O, Na₂O₂, and KO₂, respectively, is:MCQEasyJEE 2023
  11. 11Which one of the following sets of ions represents a collection of isoelectronic species? (Given: Atomic Number: F:9, Cl: 17, Na = 11, Mg =…MCQEasyJEE 2023
  12. 12The total number of isoelectronic species from the given set is. Given set: O²⁻, F⁻, Al, Mg²⁺, Na⁺, O⁺, Mg, Al³⁺, FNVAEasyJEE 2023

Frequently asked questions

Our bank has 12 previous-year JEE Chemistry questions tagged to Electronic Configuration, drawn from JEE papers between 2023 and 2025, including 2 from 2025 alone. Each comes with a full step-by-step solution.

Electronic Configuration is rated Basic overall for JEE Chemistry. The PYQs on this page break down as 11 easy, 1 medium.

Of the 12 previous-year questions on Electronic Configuration, 10 are multiple-choice (MCQ) and 2 are numerical-value (NVA) questions.

Based on recent paper analysis, Electronic Configuration is worth about 1 mark in JEE Main. It sits in Atomic Structure, a Class 11 Chemistry chapter.

More Atomic Structure topics

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